WB JEE 2018

In case of a simple harmonic motion, if the velocity is plotted along the X-axis and the displacement (from the equilibrium position) is plotted along the Y-axis, the resultant curve happens to be an ellipse with the ratio $${{major\,axis\,...

A spherical liquid drop is placed on a horizontal plane. A small distance causes the volume of the drop to oscillate. The time period of oscillation (T) of the liquid drop depends on radius (r) of the drop, density (\(\rho\)) and surface t...

In a triangle ABC, the sides AB and AC are represented by the vectors \(3\widehat i + \widehat j + \widehat k\) and \(\widehat i + 2\widehat j + \widehat k\), respectively. Calculate the angle \(\angle ABC\).

If Young's double slit experiment is done with white light, which of the following statements will be true?

The intensity of a sound appears to an observer to be periodic. Which of the following can be the cause of it?